<template>
	<div>
		<div class="search">
			<input type="text" placeholder="输一次打你一次" class="search-input" v-model='keyword' autofocus>
		</div>
		<div class="search-content" ref="search" v-show="keyword">
			<ul>
				<li class="search-item border-bottom" 
				v-for="item of list" 
				:key="item.id"
				@click="handlCityClick(item.name)"
				>{{item.name}}</li>
				<li class="search-item border-bottom" v-show="hasNoData">没找到匹配的城市</li>
			</ul>
		</div>
	</div>
</template>
<script>
import Bscroll from 'better-scroll'
export default {
		name:'CitySearch',
		props:{
			cities:Object
		},
		data(){
			return{
				keyword:'',
				list:[],
				timer:null
			}
		},
		methods:{
			handlCityClick(city){
				this.$store.commit("changeCity",city)
				this.$router.push("/")
			}
		},
		computed:{
			hasNoData(){
				return !this.list.length
			}
		},
		watch:{
			keyword(){
				if(this.timer){
					clearTimeout(this.timer)
				}
				if(!this.keyword){
					this.list=[]
					return
				}
				this.timer=setTimeout(()=>{
					const result=[]
					for (var i in this.cities){
						this.cities[i].forEach((value)=>{
							if(value.spell.indexOf(this.keyword)>-1 ||
							value.name.indexOf(this.keyword)>-1){
								result.push(value)
							}
						})
					}
					this.list=result
				},100)
			}
		},
		mounted() {
			this.scroll=new Bscroll(this.$refs.search)
		},
}
</script>
<style lang="stylus" scoped>
	@import '~styles/varibles.styl'
	.search
		height .72rem
		padding 0 .1rem
		background $bgColor
		.search-input
			box-sizing border-box 
			height .62rem
			line-height .62rem
			padding 0 .1rem
			width 100%
			text-align center
			border-radius .06rem
			color #666
	.search-content
		z-index 1
		overflow hidden
		position absolute
		top 1.58rem
		left 0
		right 0
		bottom 0
		background #eee
		.search-item
			line-height .62rem
			padding-left .2rem
			color #666
			background #fff
</style>